Sheet-metal culvert.



'J. H. DEAN.

SHEET METAL UULVERT.

APPLICATION FILED SEPTJB, 1912..

Patented J an. 7, 1913.

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auOf/MMA or bars welded or-ri'vetcd thermore wherein said which obviatesany said adjacent sections in assembled relation.

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1-,o5o,ose. Original application filed April :22, 1912, Serial No. 69

Specification oi Letters Patent.

MA, A'SSIGNOR, BY DIRECT AND MESNE & METAL CULVEBT C0,, A CORPORATION OFSHEET-METAL cunvnnr.

Patented Jan. 2,1913.

2,326. Divided and this application filed September 16, 1912. Serial No.720,528.

To all whom it may concern.

Be it known that 1, JOHN H. Duels, a citizen of the U itec States,residing at Birmingham, in the county 01'": Jefierson and State ofAlahaiiia, have invented certani new and useful Improvements in Sheet-Metal Culverts, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to sheetmetal culverts or pipes to be used asdrains, aqueducts or the like, and more particularly to such culverts ofthe nestable type, wherein the same are built of sections adapted to beknocked down and nested together in ship ment and storage and to be 'setup and formed into a complete culvert or pipe at the place where thesame is to be used, the application for this invention being a division0- an application filed by me on April 22, 1914, Serial No. 692,326.

The principal object of the invention is to generally improve theconstructioii'of such culverts and to provide a culvert which is strongand rigid in construction, cheaply made, and requiring a comparativelysmall amount or" labor in assembling the culvert sections to form acompleted culvert.

A further object of the invention is to providea culvert which is madeup oi? corrugated metal sections, preferably half sections, saidsections having rigid metal. strips to the same at or near theirlongitudinal edges, so that when the sections are placed together withtheir; longitudinal edges meeting, adjacent strips or bars serve as ameans to which metal fastoning .devices may be applied for holding Inconnection with this object of the invention, it is 'to be noted thatthe rigid strips or bars are connected directly to the convexcorrugations of the culvert sections, in which event they also serve tomaterially strengthen the sections.

A still further object or" the invention is to provide a culvert of thetype set forth, wherein the sections thereof are particularly adaptedfor nesting one within the other while being shipped or in storage, andfursections may be eas- 11y connected together without the use of bolts,rivets or similar fastening devices, or breaking away of the metal fromwhich the culvert sections are made, thereby prolonging the life of theculvert.

Further objects and advantages will appear in 'fillQ'fOllOWlHgdescription, it being understood that various changes in form,proportions and minor details of construction may be resorted to withinthe scope of the appended claims.

I have illustrated my invention in the .accompanying drawings, in which:

Figure l is a side elevation of a culvert showing the sections of thesame constructed in accordance with my invention, and furtherillustrating my improved straps or connecting bands for retaining thecomplementary sections in connected relation. Fig. 2 is a transversesectional view of the culvert taken on the line 22 of Fig. 1, and Fig. 3is a view showing a number of the culvert septions in nested relationone with the ot ier.

that each section, indicated at 1 of thc metal culvert is provided withcorrugations which are arranged parallel with opposite ends thereof, andthat when these sections,

which are preferably alt sections, are arranged in assembled position toform the completed culvert, the corrugations of upper and lower sectionscoincide with each other,

or in other words each convex and'concave corrugation of an uppersection is directly in line with the convex The sections 1, as has beenstated, arc'preferably half sections, and the same are con: structedwithout the usual outstanding flanges, but the longitudinal edges ofcomplementary sections areadapted to abut as indicated at 2, so thatwhen said sections are connected together with their longitudinal edgesmeeting or abutting, suitable improved means to be hereinafter describedbeing provided for retaining them in such relation, the corrugatedculvert, for all intents and purposes, has the appearance and strengthof an'integral corrugated cylinder.

The culvert sections are provided along their longitudinal edges withrigid metal strips or bars 3, which aresecured to the convexcorrugations of each section preferably by weldin or riveting the samethereto. In the pre erred embodiment oimyin Referring to the drawing itis to be noted and concave corru- 'gations respectively of the sectionbelow it.

greatly str en. the sections and retain L'- i, K m n v them in. sh pe.ihese SlulPS 3, however, made of short sections arthe prays rangedintervals along the longitudinal edges of the m vert sections, thisconstruction being cally claimed in a companion application, SerialNumber 720,527, filed Sept. 30, 1915.2.

in assembling the sections of this culvert with the longitudinal edgesof upper and lower sections abutting the metal strips or bars 3 0i.complementary sections are ar- 0 lie adjacent one another, and in thisretion and when the same are fastened or ii d together, serve as a meansfor retaininathe sections in connected relation for toi-ming thecompleted culvert. These adjacent strips of complementary sections, ashetero referred to, convert corrugations of the sections, and ,arepreferably arranged upon the outside of said sections, and it will benoted that passage-ways indicated at at are formed between thecorrugated culvert sections and the said. metal strips at pointsintermediate the com cs: corrugations o't said sections, and thesepasagewuys to receive the metal 1" wing devices 5, which are in thestraps or connecting bands, and are provided ior fastening adjacent stogether for the purpose of holding sections in connected relation.These straps or connecting bat-Ids illus rated in. drawing,

1 i one of the complementary sections at point intermediate adjacentconvex corrugations of the section, and the ends 6 of said straps orconnecting bands are then passed through the passage-ways d, referred toherein. and connected to the metal strips of the adjacent complementarysection by bending said ends over the strips, as is clearly shown in thedrawing. It is to be here noted "that complementary sections areconnected together at points intermediate the convex corr mist-ions ofthe sections, and this is rend-cred po )le by reason of the tact thatthe metal strips which are connected to the longitudinal edges saidsections are only connected to the convex corrugati ns thereof. so as toleave passagebetween the, sections and the metal st, a pointsintermediate the convex corrugm.

are connected to the- 5, as clearly, are adapted to.

, The particular purposd of the metal strips, as before mentioned, is toprovide a connecting means between the complementary culvert sections,but these strips also serve as a means for supporting the sections innested relation. In this connection it will be noted upon referring toFig. 8 of the drawing, that when the sections are in nested relation theinner longitudinal edge 7 of each metal strip rests upon thelongitudinal edge of the section below it, thereby allowing the sectionsto be neatly nested and supported one'within the other.

In arranging the sections to vert any number thereof may be employed toproduce the desired circumference, but usually two sections only arenecessary, preferably arranged as lower and upper complementarysections. It will be noted that the sections of the culvert embodyingthis invention, may be all alike, thus making different kinds itunnecessary to keep two form a complete pipe of sections in stock to orculvert. j

Many advantages are obtained by a construction of sheet metalculvertalong the lines, as herein specified, some of which advantageshave already been set forth in the objects of this invention, and itwill be perfectly obvious that the assembling of the parts is simple andeffectual and is of such a character that it may be accomplished wherethe work of installing a culvert is being carried on. It is to befurther noted that the sections are constructed without outstandingflanges and that the complementary sections are adapted to be connectedtogether with their longitudinal edges abutting, without the use ofbolts, rivets or similar fastening devices engaging the metal sectionsthemselves.

laying thus described my invention, what I claim is 1. A sheet metalculvert comprising complementary sections, a metal. strip or bar securedalong each longitudinal edge of said sections, and a strap or connectingband engaging one of said sections and fastened to the metal strip ofthe opposite section for retaining the sections in connected relation.

2.. A sheet metal culvert comprising complementary sections, a metalstrip or bar secured along each longitudinal edge of said sections, anda strap or connecting band adapted to straddle one of the sections andto be secured to the metal strips of the 0pposite section for retainingsaid sections in connected relation.

3. A sheet metal culvert comprising complementarysections, and a strapor connect ing band adapted to straddle one of the sec tions and to besecured'tothe longitudinal edges of the oppositoa ction for retainingsaid sections in connected relation.

4. A sheet metal culvert comfiri'sing commemes plementary corrugatedsections, a metal strip or bar secured in the convex corrugations ofeach section aleng each longitudinal edge thereof, fliereby formingpassage-Ways between said metal strips and. the sections themselves, andstrap 01 connecting bend adapted to straddle one of the sections, theends of said strap or band adapted to be inserted Within tie passagewaysand bent over the metal strips of the opposite section 10 for retainingsaid sections in connected relation.

In testimony whereof I have aflixed my si -nature in presence of twoWitnesses.

JOHN H. DEAN. Witnesses: Y

J. -W. COCHRAN, S: be REYNOLDS.

fiopies of ms gieteizi'. may be fee five cents each, by addressing the.Gummissioner of Eatents, Washingtw, I 6.

